General:
Biennial herb from a branched taproot; stems ascending to erect, several, branched, smooth, 30-70 cm tall.

Leaves:
Basal leaves 3-lobed above the midpoint of the blade, smooth; stem leaves alternate, 3- to 7-lobed into narrow segments, smooth, the lowest pair lobed again and minutely toothed.

Flowers:
Inflorescence a spike-like raceme with short-stalked flowers; petals 6, yellowish to greenish-yellow, 2-5 mm long, deeply 3-lobed, the lobes equally linear or the central lobe much narrower and shorter than the outer ones; sepals 6, linear, about 1 mm long; stamens 15-25.

Fruits:
Capsules, oblong, 6-8 mm long; seeds pear-shaped, 1.5-1.7 mm long, black, smooth, shiny.

Source:  The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source:  The Illustrated Flora of British Columbia